I have a weird question, obd2 m50b25?

[formula driver]

I have an s52 and an m50 long block. The s52 is gonna get the obd1 stuff.

My question is, can I get the m50 to run with the obd2 harness, ecu, manifold, and sensors? Just so I dont have to trash the m50 shortblock.

I know this is kind of a stupid question and its not a big deal to me, just had a friend say it was possible.

So do me a favor and save the dick head remarks. Thanks...

[MIKe30]

funny you ask this, I was just thinking yesterday what would happen if I put my s52 intake mani on my brothers 94 325i...more torque, less hp? or less of both?

[formula driver]

funny you ask this, I was just thinking yesterday what would happen if I put my s52 intake mani on my brothers 94 325i...more torque, less hp? or less of both?

are you still looking for those parts. I should have a few, pm me...

[Uber E30]

Well, assuming you had an ECU from an m52b25 i wouldnt see any issues with it. Definitely wouldnt run it with the s52 ECU though. Also might need to do EWS delete on it... just seems like alot of money to spend instead of just sourcing the OBDI stuff again.

[MIKe30]

are you still looking for those parts. I should have a few, pm me...

Ah, good looks - I will update it. Fortunately already found most just waiting on deliveries. If you have anything on the updated list please pm me before I buy from stealer!!

[formula driver]

Well, assuming you had an ECU from an m52b25 i wouldnt see any issues with it. Definitely wouldnt run it with the s52 ECU though. Also might need to do EWS delete on it... just seems like alot of money to spend instead of just sourcing the OBDI stuff again.

well the obd1 ecu is gonna be used in the s52 so that wouldnt be possible. But your response is why I asked, i just want some opinions...

[z31maniac]

well the obd1 ecu is gonna be used in the s52 so that wouldnt be possible. But your response is why I asked, i just want some opinions...

That's why he is saying get ANOTHER SET of OBD-I stuff.

[etxxz]

it probably will run.. sure.. even with obd1 mani.
seems like the reason for bigger displacements (and obdII software) in obdII e36 cars is emissions related to maintain the same power output.

[formula driver]

That's why he is saying get ANOTHER SET of OBD-I stuff.

helpful stuff right there...

[formula driver]

it probably will run.. sure.. even with obd1 mani.
seems like the reason for bigger displacements (and obdII software) in obdII e36 cars is emissions related to maintain the same power output.

Thats good to know, it would all be done only if it was cost effective. If i could do it with the obd2 mani, ecu, and harness along with the sensors (all the take offs from the obd1 swap) than I would give it a try...

[matt]

I don't think the stock sw will run an m50.

Lots of minor differences.

[formula driver]

I don't think the stock sw will run an m50.

Lots of minor differences.

so all it would take is diff software? You would be the man to ask...

[matt]

Just because it could be done with software doesn't mean that software exists that will work. So it's not "all" it would take. It would be a big deal.

M50s are a dime a dozen, just sell it and move on.

[Uber E30]

well the obd1 ecu is gonna be used in the s52 so that wouldnt be possible. But your response is why I asked, i just want some opinions...

M52B25 is the OBDII 2.5 e36 engine (aka 323i e36). Of course you couldnt use the OBDI computer with OBDII stuff. Im saying you would, at minimum, need that ECU and possibly EWS delete which at that point you are already in the price range of just sourcing OBDI stuff.

It MAY be possible, but not worth it at all. If its a Vanos m50, keep the head around because its the same as your s52 head, and sell the rest for 50 bucks or something.

[MIKe30]

M52B25 is the OBDII 2.5 e36 engine (aka 323i e36). Of course you couldnt use the OBDI computer with OBDII stuff. Im saying you would, at minimum, need that ECU and possibly EWS delete which at that point you are already in the price range of just sourcing OBDI stuff.

It MAY be possible, but not worth it at all. If its a Vanos m50, keep the head around because its the same as your s52 head, and sell the rest for 50 bucks or something.

Lets say OP has another e30...maybe a daily. Why sell half the motor for $50 when he can put together a complete motor with parts he already has with the only expense of an additional $50 for a used m52 dme. He could throw it in his DD and up the value of the car a grand or $1500.

Spend $50, receive $900-1400... sounds like a smart investment to me. Just make sure the m52b25 cams are the same as your m50 cams.